<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="js/vue.js"></script>
</head>
<body>
  <div id="app">
    <h3>Welcome {{uname}}</h3>
    <h3 v-text="`Welcome ${uname}`"></h3>
  </div>
  <script>
    setTimeout(function(){
      new Vue({
        el:"#app",
        data:{
          uname:"dingding"
        }
      })
    },2000);//这里模拟一个网络加载速度慢时的一种业务场景
  </script>
</body>
</html>
